One of the basic components selected when installing a walk-in cooler/freezer or any field-assembled refrigeration system is the metering device, typically the thermostatic expansion valve (TXV). The TXV needs to be selected to match the Btu capacity of the system’s evaporator and compressor.
The amount of condenser subcooling needed is system dependent. The more pressure drops — friction and static — associated with the lines and accessories that carry the liquid in the system, the more need there will be for liquid subcooling to prevent liquid line flash gas.
Although overall standards of refrigeration maintenance remain high, at many facilities there is still room for improvement. Upgrading your company’s rotating-equipment maintenance procedures and eliminating unsound practices will help reduce the risk of failures that can lead to process shutdowns or spoilage of refrigerated product.
Perlick Corp., a maker of undercounter refrigeration, announced it has extended its residential products warranty to three years. The warranty is applicable to products built after Feb. 1. The warranty covers all parts and labor to repair or replace any part of the product, for three years from the date of the original purchase.
Move over compression ratio, ring valve, and reciprocating compressors. There are two new terms to add to your refrigeration terminology: ‘bi-volt’ and ‘spool.’ The words relate to some of the newest developments in compressor applications.
Ammonia is both a friend to refrigeration contractors and a danger, too. When used properly in refrigeration units, its outstanding heat transfer capabilities can keep food cold for long periods of time, it does not harm the environment, and it is biodegradable. But exposure to ammonia does pose a danger to human health.
Source Refrigeration & HVAC, Anaheim, Calif., announced that Bruce Buchholz has been named president and chief executive officer. Buchholz replaces Lauren Abrams, who resigned as CEO of Source for medical reasons.
Downstate Illinois utility Ameren Illinois is reminding its electric and natural gas business customers looking to reduce their energy expenses that the project deadline is approaching for participation in the 2011-12 ActOnEnergy® efficiency incentives program.
Interstate Warehousing Inc., a Tippmann Group company, announced plans to expand its operations in Franklin, Ind. The refrigerated warehouse company will invest $26 million throughout two phases beginning with the expansion of the company’s current 428,000-square-foot facility by 140,000 square feet.